 <style>
     h1{
         border: #454545 solid 10px;
         border-radius: 20px;
         
         padding: 15px;
         padding-left: 50px;
         padding-top: 30px;
         padding-bottom: 50px ;
         padding-right: 30px;

         margin: 50px;
         margin-left: 100px;
         

     }
     
 </style>

<body>
    <h1>你好呀✨✨</h1>
</body>